Lamp



E. W. SMEETON,

LAMP.

APPLICATION FILED mp2s. 1919.

//1 venfor:

UNITED STATES PATENT OFFICE.

EDWARD'WARREN' SMEETON, OF LONGISLANDCITY, NEW YORK.

LAMP.

T 0 (2 to 7mm it may concern Be it known that I, EDWARD WARREN SMnn'roN,a subject of the King of Great Britain, residing at Long Island City, inthe county of Queens, State of New York, have invented certain new anduseful Improvements in Lamps, of which the following is a full, clear,concise, and exact description.

This invention relates to a lamp. It relates more particularly to an oilburnof lamp. uch a lamp is particularly useful for heating incubators,although not limited to such use.

Heretofore when oil burning lamps have been employed for heatingincubators it has been necessary to periodically remove such lampstherefrom for refilling the same and trimming the wick.

In such lamps therate of carbonization at the flame end of the wick hasvaried between wide limits.

Due to these and other causes it has not been possible to maintainuniform temperatures in incubators heated by oil burning lamps; whereasit is highly important that a uniform temperature be maintained if theincubator is to be efficiently operated.

from the following description'and claims.

In attaining the objects of the invention the lamp is provided-withmeans positioned within and operablefrom without the lamp burnerinclosure for removing the carbon from the wick while the lamp isburning and ,wlthout extinguishing the flame. The lamp also hasassociatedjwith the oil well thereof an-oil reservoir for maintainingthe oil in the oil well at a constant level and for controlling the rateof carbonization of the lamp wick.

An embodiment of the invention is illustrated in the accompanyingdrawings wherein:

Figure l is a side elevation of the lamp equipped with the wick trimmerand the associated oil receiver;

Fig. 2 shows the trimmer mounted within the cone of the burner; and

Specification of Letters Patent.

Patented Aug. 30, 1921.

Application filed J'anuary 29, 1919. Serial No. 273,827.

Fig. 3 shows the trimmer in operative reon the lower end of the base,engaging internal threads provided in the rim of an opening in the upperend of the oil well. An oil reservoir 7 is connected with the oil well 6by means of a pipe 8. The supply of oil in the reservoir 7 may bemaintainedby means of an upturned bottle 9. The mouth of the bottle 9should be at the level at which it is desired to maintain the. oil inthe oil well 6. Thebottle may be large enough to hold suflicient oil,whereby the oil in the receptacle ismaintained at a constant level for aperlod ranging from two to four days,

without replenishing the supply in the reservolr. A valve arrangement 1spreferably employed in connectionwith each bottle for maintaining theopeningthereof closed, until the bottle' is in resting position in thereservoir as shown in Fig. 1. This arrangement for normally maintaining,the mouth tion shown in'Fig. 1 may comprise a cap 27 secured to themouth of the bottle. The cap 27 is provided with an opening 28 which maybe closed by means of a cone-shaped plug 29 secured to a rod 30 passingthrough the center thereof. A coiled spring 31, one end of which engagesthe base of the plug 29 and the other'the base portion of aU-' shapedbracket 32 secured to the cap 27 of the valve tends normally to forcethe plug 29 into the opening 28. When the upturned bottle is in thereservoir 7, the end of the rod 30 engages the bottom of the reservoirand the weight of the bottle and its contents causesthe compression ofthe spring 31, thereby causing plug 29 to move out of the opening 28, sothat oil will then flow out of the bottle into the reservoir.

The burner is of well-known construe-- tion, com'prising thebase 5,a'wick tube 10, through which extends a wick 11, which may be raised orlowered by means of a wick adjuster 12. Above and on the base 5 ismounted a platform 14 having an upturned edge 15 within which fits thelower end of a metallic chimney 15. The chimney 25 is provided with aWindow 26 of mica, through which the flame issuing from the Wick 11 ofthe bottleclosed except when in the posimay be seen. The upper end ofthe chimney 25 fits into the lower end of the usual heater 16 attachedto the incubator by means of a short pipe 33 and through which the airheated by the lamp passes into the points in the cone 17. The rod 21 isso mount- I ed that it is parallel to the flat side of the wick tube 10,so that when the L-shaped member 20 is swung into the position shown inFig. 3byturning up the ends of the sup porting rod 21, the rod'may bemovedhorizontally to shift the tapered free armof the member 20 back andforward across the top of the wick 11 to scrape off thacarbon.

formed thereon, The width of the free arm or cutting portion of themember 20 is such that it is in contact with only a small portion of thewidth of the wick at one time, whereby the carbon maybe effectivelyremoved without interfering with the flame. In order that thewicktrimmer may be operated from without the chimney 25, and withoutremoving the lamp from the incubator or from operative relation to theheater 16, the rod 21 is made long enough to extend throughvery smallslots provided in the opposite sides of the chimney 25. The ends of therod are bent at substantially right angles to the rod to provide readymeans for turning the rod, or for moving it horizontally. Thus thecarbon may be removed from the burning lamp wick without extinguishingthe flame and without removing the lamp from the incubator heatedthereby.

lVhile certain advantages are secured by employing either the reservoirfor maintaining the oil in the oil well at a, constant level, or thewick trimmer, still greater advantages are secured when these twofeatures are combined in the same lamp. It

will be evident that the shorter the distance from the oil in the oilwell to the flame, end

of the wick, the, morethoroughly will the 1 wick be saturated, thereforethe least carbonization will take place at the flame end of the wick,provided however that this distance be maintained uniform. The manyadvantages in the use of the wick trimmer embodying the features of thepresent invention will be apparent to any one familiar withthe operationof incubators and the-necessity for maintaining therein a uniformtemperature.

What I claim is:

1. In anoil burning lamp, the combination of a burner, having @RVVTQEtherein, an inclosure for the upper portion] of. the burner, a flattaperedwick trimmer having both edges arranged, to. trimthe wick, andvan operating rod therefor extending through and supported. by the iinclosure.

2. An oil burning lampv comprising a burner having, a. wick, therein, a,cone inclosing the burner and having a slot through which theqfiame fromthe wick issues, a wick trimmer withinthe cone arranged to trim the wickwhile it is burning without extinguishing the flame, thewick trimmerhaving afiattaperedarm for engaging't he wick andan angular extension,and an operating rod to which the angular. extension is fastened. i I

3. Anfoil burning. lamp comprising a burner having a wick therein, acone inclosmg the burner'and'l having; aislot. through i which the flamfrom the wick issues, a wick trimmer within;the cone. arranged to trimthe wick while it isburning without extinguishi'ng the flame, the wicktrimmer having a fiat tapered armfor engagmgthe wick and an, angularextension, a and 7 an op-. erating rod for the trimmer extending throughand supported by the cone, th e.o peratingrod having a short loopformed. therein to which the} trimmer extension is rigidly fastened.

4. An oil burning lamp comprising a. burner having a wick therein, acone inclosing theburner and having a slot through which the, flame fromthe wick. issues, an actuating rod having a portion thereof within thecone formed into a loop, and an L shaped wick trimmer. having one armthereof rigidly fastened to the loop anditsfree arm forming a flattapered double-edged.cutter.

In witness whereof I hereunto subscribe my name this 18tlrday ofJanuary, A. D. 1919. i

V, EDlVARD WARREN SMEETON.

